mi·cro·or·gan·ism 
(mī′krō-ôrgə-nĭz′əm)
(mī′krō-ôrgə-nĭz′əm)n.
An organism or infectious agent of microscopic or submicroscopic size, especially a bacterium or protozoan.
- double-faced
- double fault
- double-fault
- double feature
- double fertilization
- double figure
- double flat
- double genitive
- double Gloucester
- double-handed
- doublehanded
- double-handedly
- double-header
- doubleheader
- double helix
- double-hung window
- double indemnity
- double jeopardy
- double-jointed
- double knit
- double-knit
- double negative
- doubleness
- double-park
- double-parker